Lighting device with circadian rhythm based feedback control

ABSTRACT

The invention is a lighting device that establishes an optimum circadian rhythm profile for a user by monitoring the sleep-wake cycles of the user over a period and controlling a light source based on the profile. The lighting device includes a feedback control system that receives sensory and user inputs to inform the system regarding the operation of the system and the light output. The light output of the lighting device is adjusted to improve the circadian rhythm of the user.

RELATED APPLICATIONS

This patent application claims the benefit of U.S. Provisional PatentApplication No. 62/923,382, filed Oct. 18, 2019, which is herebyincorporated by reference in its entirety.

TECHNICAL FIELD

This invention relates to lighting systems with feedback control basedon input from the circadian rhythms of a user.

BACKGROUND

Light therapy is widely prescribed for mood related disorders includingdepression, seasonal affective disorder, sleep disorders and bipolardisorder. It is known that circadian rhythms can be synchronized withexposure to strong light on 24-hour intervals. It is also known thatstrong light in the morning is effective at improving the symptoms ofseasonal affective disorder and depression. Studies have found thatchronic disruption of one of the most basic circadian (daily)rhythms—the day/night cycle—leads to weight gain, impulsivity, slowerthinking, and other physiological and behavioral changes in mice,similar to those observed in people who experience shift work or jetlag. Disruption of the sleep wake cycle are often due to irregular lightand dark patterns. Irregular Sleep-Wake Rhythm disorder causes aperson's circadian rhythms to be so disorganized that there is no clearsleep or wake pattern.

Therefore, a device that uses the properties of light to influence andrealign the Sleep-Wake Rhythm with an optimum cycle is needed. By doingso, the device may improve mood, and mental health. A lighting devicethat improves mood and relaxation by simulating lighting events thatoccur in nature to invoke feelings of calm and relaxation would also bedesirable. People enjoy improved mood from lighting events likecampfires, sunsets, sunrises and even thunderstorms. People thatexperience kinetic light art also agree that the effect is mesmerizingand helps to improve mood.

SUMMARY

In one aspect, the invention is a lighting device that establishes anoptimum circadian rhythm profile for a user by monitoring the sleep-wakecycles of the user over a period and controlling a light source based onthe profile. The lighting device includes a feedback control system thatreceives sensory and user inputs to inform the system regarding theoperation of the system and the light output. The light output of thelighting device is adjusted to improve the circadian rhythm of the user.

In a preferred embodiment, the lighting device establishes an optimumcircadian rhythm profile for a user by monitoring the sleep-wake cyclesof the user over a period and controlling a light source based on theprofile. The lighting device includes a feedback control system thatreceives sensory and user inputs to inform the system regarding theoperation of the system and the light output. The light output of thelighting device is adjusted to improve the circadian rhythm of the user.

This invention has been developed in response to the present state ofthe art and, in particular, in response to the problems and needs in theart that have not yet been fully solved by currently available systemsand methods. Features and advantages of different embodiments of theinvention will become more fully apparent from the following descriptionand appended claims or may be learned by practice of the invention asset forth hereinafter.

Consistent with the foregoing, a lighting device is disclosed. Theobjectives of the system are to provide a lighting device thatestablishes an optimum circadian rhythm profile for a user by monitoringthe sleep-wake cycles of the user over a period and controlling a lightsource based on the profile. The lighting device includes a feedbackcontrol system that receives sensory and user inputs to inform thesystem regarding the operation of the system and the light output. Thelight output of the lighting device is adjusted to improve the circadianrhythm of the user.

In a preferred embodiment, a lighting device may include two or morelight sources, a controller that adjusts a light output of the lightsources, a processor, non-transitory memory for data storage, storedsettings in the non-transitory memory, and an input device.

The lighting device may also include a feedback control system. Thefeedback control system may receive a reference input representing anoptimum circadian rhythm profile of a user. The optimum circadian rhythmprofile may be stored in the memory. The feedback control system mayreceive input data from the input device. The controller may modify thereference input based on the input data. The controller may control thelight output according to the stored settings and the modified referenceinput to improve the circadian rhythm of a user.

In another embodiment, the input devices may comprise one or more of atouch screen, a button, a dial, a motion sensor, a microphone, aproximity sensor, a pressure sensor, a motion sensor, a user interfacedevice, a mechanical sensor, Vision and Imaging Sensors, a camera, atemperature sensor, a radiation sensor, a position sensor, aphotoelectric sensor, a particle sensor, a humidity sensor, a gas orchemical sensor, a force sensor, a flow sensor, an electrical sensor, acontact sensor, a mechanical device, and an electrical sensor.

In an embodiment, the user interface device may include at least one of:a smart phone, a computer, an input device integrated to the lightingdevice, and a mobile device. The lighting device may include a basestructure supporting two or more planer surfaces; wherein the lightsources shine light onto the one or more planer surfaces. At least oneof the two or more planer surfaces may be translucent allowing at leastsome of the light from the light sources to shine through the planersurfaces. The two or more planer surfaces may each have a shaperepresenting a natural plant-like appearance.

In certain embodiments, the lighting device may include a networkdevice; and one or more wireless transmitter and receivers with at leastone antenna; and wherein the network device may connect to an additionalone or more likely equipped lighting devices. The network device mayalso be connected to at least one of: a local area network, a wide areanetwork and a cloud-based network. The processor may send a controlsignal to the controller based on at least one of: one or more userinputs, a signal from the network device, and the stored settings.

In other embodiments, movement may be simulated by sequencing the lightoutput of two or more lighting devices. The light source may simulatemovement by changing at least one of: the color, brightness andfrequency of the light output. The light source may simulate movement bychanging at least one of: the color, brightness and frequency of thelight output. The light sources may simulate movement by separating thelight output into two or more channels; wherein each channel changes atleast one of the brightness, color and frequency of the light output;wherein the harmonics generated between the channels create a movementeffect. Movement may be simulated by sequencing the light output of thetwo or more light sources in a lighting device.

In another embodiment, the circadian rhythm of a user may be stored inthe stored settings as a specific profile for that user. A model may bebuilt representing the history of a user's profile over a time period;wherein the model is modified based on changes to the user's profileover the time period; wherein the model is stored in the storedsettings. The model may predict light output profiles that willgradually adjust the user's circadian rhythms to the optimum range aftera disruption event that has changed the user's circadian rhythm to aless than optimum range.

Further aspects and embodiments are provided in the foregoing drawings,detailed description and claims.

BRIEF DESCRIPTION OF THE DRAWINGS

The following drawings are provided to illustrate certain embodimentsdescribed herein. The drawings are merely illustrative and are notintended to limit the scope of claimed inventions and are not intendedto show every potential feature or embodiment of the claimed inventions.The drawings are not necessarily drawn to scale; in some instances,certain elements of the drawing may be enlarged with respect to otherelements of the drawing for purposes of illustration.

FIG. 1 is a diagram of the lighting device with attached components.

FIG. 2 is an overhead view of light sources on a circuit board.

FIG. 3 is a side view of several interference shells.

FIG. 4A is an illustration of a lighting device with shells in a closedposition.

FIG. 4B is an illustration of a lighting device with shells in an openposition.

DETAILED DESCRIPTION

The following description recites various aspects and embodiments of theinventions disclosed herein. No particular embodiment is intended todefine the scope of the invention. Rather, the embodiments providenon-limiting examples of various compositions, and methods that areincluded within the scope of the claimed inventions. The description isto be read from the perspective of one of ordinary skill in the art.Therefore, information that is well known to the ordinarily skilledartisan is not necessarily included.

Reference throughout this specification to “one embodiment,” “anembodiment,” or similar language means that a particular feature,structure, or characteristic described in connection with the embodimentis included in at least one embodiment. Thus, appearances of the phrases“in one embodiment,” “in an embodiment,” and similar language throughoutthis specification may, but do not necessarily, all refer to the sameembodiment, but mean “one or more but not all embodiments” unlessexpressly specified otherwise. The terms “including,” “comprising,”“having,” and variations thereof mean “including but not limited to”unless expressly specified otherwise. An enumerated listing of itemsdoes not imply that any or all of the items are mutually exclusiveand/or mutually inclusive, unless expressly specified otherwise. Theterms “a,” “an,” and “the” also refer to “one or more” unless expresslyspecified otherwise.

Definitions

The following terms and phrases have the meanings indicated below,unless otherwise provided herein. This disclosure may employ other termsand phrases not expressly defined herein. Such other terms and phrasesshall have the meanings that they would possess within the context ofthis disclosure to those of ordinary skill in the art. In someinstances, a term or phrase may be defined in the singular or plural. Insuch instances, it is understood that any term in the singular mayinclude its plural counterpart and vice versa, unless expresslyindicated to the contrary.

As used herein, the singular forms “a,” “an,” and “the” include pluralreferents unless the context clearly dictates otherwise. For example,reference to “a substituent” encompasses a single substituent as well astwo or more substituents, and the like.

As used herein, “for example,” “for instance,” “such as,” or “including”are meant to introduce examples that further clarify more generalsubject matter. Unless otherwise expressly indicated, such examples areprovided only as an aid for understanding embodiments illustrated in thepresent disclosure and are not meant to be limiting in any fashion. Nordo these phrases indicate any kind of preference for the disclosedembodiment.

FIG. 1 is a diagram of the lighting device with attached components.Controller 100 is shown with antenna 102 for wireless communications andsound sensor 104 receiving sound waves 105. Also connected to thecontroller are motion sensor 106, user 108, ambient light sensor 110,ambient light 112, and multiple light source channels 114.

FIG. 2 is an overhead view of light sources on a circuit board. PrintedCircuit Board 201 is shown with single channel light source 202. Each ofthe three shown light sources are separated by channels 203.

FIG. 3 is a side view of several interference shells. Interferenceshells in this embodiment are the planar surface that the light sourceis shining a light on to. Translucent secondary shell 301 is shownbehind translucent primary shell 302 in front of the secondary shell301.

FIG. 4A is an illustration of a lighting device with shells in a closedposition. Shell 401 is in a closed position.

FIG. 4B is an illustration of a lighting device with shells in an openposition. In open shell 402, the planar components open 404 as shown.

Light therapy boxes currently on the market often utilize a harsh brightblue light and can be unpleasant to use. The invention described hereinuses the properties of light to improve mood, and mental health, butdiffers from conventional light therapy boxes in that it is meant to bea pleasant experience. The lighting device may improve mood andrelaxation by simulating lighting events that occur in nature to invokefeelings of calm and relaxation. People enjoy improved mood fromlighting events like campfires, sunsets, sunrises and eventhunderstorms. People that experience kinetic light art also agree thatthe effect is mesmerizing and helps to improve mood. The relax lamp maybe beneficial to healthy and sickly people alike.

The lighting device may simulate movement with lighting. A single lightsource may simulate movement by changing the brightness or the color ofthe light output. This may be accomplished by a microprocessor drivingan RGB LED with pulse width modulation (PWM) to adjust the brightness ofeach color. More sophisticated movement may be accomplished if the lightoutput is separated into two or more channels. Each channel changes inbrightness and color, and if they change independently the harmonicsgenerated between them may seem to move more than a single output. Usinga different color, brightness, and frequency of change with multiplechannels may create random and unpredictable combinations for a movingand mesmerizing effect.

Movement may be simulated by sequencing the lights. For example, with 3channels arranged in a circle, running a 3 second change cycle on eachchannel 1 second apart may cause the light to appear to be spinning orcircling. Other effects like bouncing, firelight, cloud movement,sunrise and sunset are also possible with multiple channels as colorgradients may be achieved between the channels.

Multi-channel lights, color, brightness, fade time may also becontroller by the lighting device. The lighting device may use multiplechannels to produce lighting effects that may be both random andcontinuously changing. One method may employ multiple channels that areout of phase with each other. Each channel may vary the light color,brightness and fade time independent of the other channels. By changingthe brightness, color and fade time of multiple channels at differentrates, the resulting effect may be random changing that does not repeat.When using multiple channels, the colors from adjacent channels mayblend together making new colors.

The lighting device may synchronize lighting over many network nodes.Ambience effects may be achieved using multiple channels of coloredlight. By linking multiple lamps together over a wireless connection,the number of channels available for effects may be multiplied. Bysynchronizing multiple lamps together, a more immersive effect may beachieved along with more light output.

One method to synchronize lamps may be to copy the active sequence toall other lamps in the group over the wireless link. Each lamp may haveseveral sequences defined. A single sync packet may be sent from onenode to the other nodes in the group wirelessly using a broadcastmessage, group message or a direct message. The message may be triggereddirectly from an app on a phone or tablet, and converted in one of thelamp nodes, or it may be triggered from a bridge node or a mastercontroller node that receives commands from another network—like anInternet connected IP network.

The sync packet may reference the desired sequence to run and mayinclude a time delay or sequence offset index to set the desired overlapand interference. The sync packet may also send instructions forgenerating a sequence in real time.

The lighting device may include Color sequence definition. A colorsequence may be a list of color elements that include at least a colorand the time to change to that new color. The sequence can be anylength, and the separate channels may reference the same sequence withan offset, or each channel can have a unique sequence.

Sequences may be generated before they are needed, or they may begenerated in real time when they are ready to run. The sync packet maytrigger generation of a new sequence, by including rules for thesequence. A typical sequence rule may include a number of colors orcolor ranges allowed in the sequence, and instructions for allowedtiming ranges for each color change. The rule may also includehysteresis or an allowable amount of randomness to be applied to colorchanges to keep the lighting effects random and unpredictable. When anode receives a sequence rule, it may generate new sequences for eachchannel and run them immediately or on the next repeat of the sequence.An example of sequence generation instruction to make a campfiresequence may be as follows:

-   -   Target colors: Yellow, Orange, Red. (expressed in RGB or other        color values).    -   Minimum change time: 200 ms.    -   Maximum change time: 1 s.    -   Number of change elements: 100    -   The algorithm that generates the sequence may follow this flow:    -   For each channel in the device,    -   Iterate through 100 elements per channel,    -   Choose a color at random that is in range between the target        colors using the maximum and minimum value for the red, green        and blue components of the target colors.    -   Choose a change time at random using the minimum and maximum        values defined.

The lighting device may use signal strength to determine spacing forlighting effects. When synchronizing multiple lights over a wirelessconnection, it may be useful to know the physical proximity of devicesto better coordinate simulated movement. One way to map the devices maybe to use the wireless signal strength (RSSI) to estimate the distancebetween nodes. When a device receives a synchronization packet, it mayadjust the time delay for the initial sequence run to a longer timewhere the signal strength is lower or may adjust to a shorter time ifthe signal is strong. Some wireless technologies also may allow for moreaccurate distance and direction detection, like Bluetooth 5.1. Usingthis information, the lamps may make a reasonably accurate map of theenvironment and adjust the timing according to the distance and relativedirection recorded for each lamp.

The lighting device may include auto on when lights go out. A lightsensor may detect lights out. The lighting device may include an ambientlight sensor. When the lamp is off, it may measure the ambient light todetermine what is happening in the environment. When the light sensorindicates a rapid drop in light (for example when the room lights areturned off) the lamp may turn on to keep the room lit for safety. Thelight sensor may also allow the lamp to adjust brightness more quicklyor slowly depending on the environment. For example, turning the lamp onin a bright room may cause it to go brighter faster, and may turn it onin a dark room may reduce the total brightness and time to preventeyestrain.

The lighting device may Incorporate physical movement by use of a servoto simulate opening flower. One embodiment of the lighting device mayinclude the general shape of a flower. Since part of the goal of thedevice is to simulate movement, actual movement may be included toenhance the effect. For example, the flower may have petals that open orclose when actuated using a motor or servo. This movement may besynchronized with the color and brightness movement effects. Opening andclosing the flower may also alter the light that is cast around theroom. For example, when the flower is closed the light may be diffusedby the translucent petals. When the flower is opened the light sourcemay be exposed to cast hard shadows around the room.

The lighting device may include a Smartphone Application for setup andconfiguration. A phone application may be used to configure the lamp,set the colors, ambience or mood. The application may include a bedtimeand alarm feature to simulate sunset and sunrise on a desired programmedschedule.

The lighting device may Integrate sounds via an app. The app may alsoplay music from the phone to an attached Bluetooth speaker or othersound system. The app may interpret the music stream and send commandsto the lighting device over a wireless connection to synchronize thelamp movement with the music.

The lighting device may use different channels (colors) to reflectdifferent frequency sounds. With multiple channels in the lamp,different channels may be assigned to frequency ranges so the lamp canreact to music. One method is the lamp may assign a channel and color toeach frequency range, for example red is assigned to bass notes, greento mid notes and blue to high notes. This variation may be included in anew profile or model for a specific user and used to determine theoutcome on the revised or updated circadian rhythm profile for thatuser. Adjustments to each user's profile may be monitored and recordedby the system. Specific colors, channels, frequencies, scheduling,duration of each cycle and sequencing of lighting events may be includedin this profile. As adjustments are made, the system may record theresulting effects of these adjustments on the user and on theircircadian rhythm. In this way, an optimum Circadian Rhythm profile foran individual user may be established. This optimum profile may be usedas a standard for that specific user in the future, and as a gauge toadjust the user's Circadian Rhythm in the future if the user's CircadianRhythm becomes out of whack or otherwise disrupted.

The lighting device may include an Integrated phone charger/stand. Thephone charger may integrate USB ports for phone charging. The lightingdevice may also include a stand for a phone or a wireless charging padfor a rechargeable watch or phone.

The lighting device may use a microphone to react to sounds in theenvironment. The lighting device may react to sounds in the environmentusing a built-in microphone. This may allow the lighting device tosynchronize with music and may also allow the lamp to respond to voicecommands or other audible signals (like clapping, sneezing, screaming,etc). The lamp may also use the surrounding sound volume and rhythm toadjust the lighting effects in intensity and timing.

The lighting device may incorporate motion sensors to detect movementnearby and turn on the light. The motion sensor and may be configured toturn on the light when movement is detected in a dark room. The motionsensor may also communicate movement during the user's sleep/wake cyclethat may be informative regarding the user's sleep cycle. For example,the system may learn the user's stages of sleep by identifying the wake,light sleep, deep sleep, REM, and repeat. Awake time may also be sensedby the motion sensor. Additional sensors including microphones, pressuresensors, etc. may be used to further identify these cycles. The user'ssleep cycle may then be monitored and analyzed by the system todetermine what the optimum cycle may be for that user. User input via asmartphone app or the like may also be used to determine the optimumprofile.

The lighting device may dim up red at night to reduce eye adjustment tomake it easier to go back to sleep and can dim back down after themotion has stopped. Motion detection may perform different functionsdepending on the time or schedule, for example the lamp may go brightduring the day and dim at night.

The lighting device may use motion sensor to track sleep/wake cycle andtimes up in the night. The motion sensor information may be gathered toreport the numbers of times a person got up in the night and mayestablish patterns of movement by tracking motion over time. The motiontracking information can be used to predict when the lights are neededand coordinate lighting with typical movement.

The lighting device may sync with sunrise/sunset or schedule. The lightmay include a real time clock so that it knows the time of day. In onemode of operation the lamp may gradually turn off at (actual) sunset,and gradually turn on at (actual) sunrise. In another mode, the lamp maygradually turn off at bedtime and on at wake time, simulating sunriseand sunset on a preset schedule.

The lighting device may maintain circadian rhythms to help people withoff schedules, dark environments. Using a real time clock of thelighting device may establish a consistent sunrise and sunset scheduleto establish circadian rhythm. This feature may allow people living in adark environment (basements, the north pole, Canada, Alaska) or peoplethat work the graveyard shift or other schedules to have a light on andoff schedule that is optimum for their own Circadian Rhythm.

Once the desired schedule is configured, the lighting device will stickto the optimum 24-hour schedule consistently to match desired circadianrhythms.

The lighting device may simulate nature: campfire, storm, lightning,sunrise/set, clouds, ocean, autumn. The lighting device may use multiplechannels to simulate effects found in nature. For example, it mayflicker using reds and yellows to resemble a campfire. Or go from whiteto dim gray or blue to simulate an approaching storm, and flash andflicker like lightning. This effect may be further enhanced when severallights communicate with each other in the same room by coordinatinglighting changes over a wireless connection.

The lighting device may employ light therapy functions to improve mood.Light therapy is a well-known treatment for seasonal affective disorder,using including white, blue or green tinted bright morning lights. Thelamp may integrate light therapy features with ambience features. Forexample, instead of blaring a blue light when turned on, the lamp maygradually dim up in color like a sunrise, and go to pure white, bluewhite or green white and maintain the bright light level for a set timeto satisfy light therapy needs. Combining the emotional reaction to thelight with the technical therapy light may make a more pleasant userexperience.

The lighting device may monitor sleep using phone camera. The app thatis used to control the lamp may also use the phone's built in camera toobserve sleep habits and track them for the user. Using the phone dockmay allow the lamp to aim the phone camera in the sleeping direction.

The lighting device may synchronize multiple lights together from asingle motion or other event (lights out). When multiple lights are usedtogether, they may coordinate the response to events like motion orambient light events like lights out. The light that detects motion oranother event may forward the information to other lights over thewireless connection so that all lights may behave in a synchronizedmanner.

The lighting device may incorporate speakers for synchronized sounds andcomplete relaxation experience. The lighting device may include speakersto play sounds in concert with the light effects for a more immersiverelaxation experience. The speakers may also be used to play music overa Bluetooth or wireless connection and the light may coordinate lightingeffects with the music. With speakers incorporated the alarm functions,wake and sleep may also play music.

The lighting device may Include Alexa for full control without phone.The light may include built-in Amazon Alexa, Google Home or other voiceprocessing functionality for voice control. The control may apply to thelight or may trigger other functions via the Internet.

The lighting device Wi-Fi version may connect to cloud for control fromAlexa or google home. The light may incorporate a Wi-Fi radio so that itcan be controlled from the Internet for compatibility with Amazon Alexa,Google Home or other Internet compatible control systems.

When using multiple lights, only one may need Wi-Fi capability as theothers may be controlled over the other wireless communication. Thelight may also be made accessible to the Internet using an externalWi-Fi or Ethernet to wireless bridge device.

The lighting device may stimulate relaxation using gently fading lightcircuits together with different fade times and color ranges. (PeterMyer's kinetic light machine)

The lighting device may encourage relaxation by using gently fadingchannels that change at different rates and use different colors. Bydiffering the rates between the channels, the light will changeindefinitely without repeating patterns. By using multiple channels, theinterference patterns between the channels may provide depth and varietyto the experience.

Versions may include a standalone lamp, light bulb, LED stringcontroller, under cabinet lighting.

The lighting device functionality may work in many differentembodiments. Some of the embodiments may include:

-   -   a table lamp.    -   a pendant light    -   a light bulb replacement    -   under cabinet lights    -   an LED string controller that supports multiple strings.    -   outdoor landscape fixtures    -   cove lighting    -   ambience lighting, like behind a TV or behind plants    -   a Christmas light string controller

Under cabinet lights include motion sensing, light sync, auto off andauto on.

The under-cabinet version of the light may include at least:

-   -   motion sensing in the vicinity of the workspace to illuminate.    -   wireless coordination between lights so that they all work        together    -   ambient light detection so that the lights can turn on and dim        off gradually to prevent

accidents common to poorly lit rooms.

-   -   the under-cabinet lights may also perform relaxation functions        and coordinate with other relax lamps.    -   Add visual interest with overlapping petals, stripes, shadows or        other interference patterns to keep it from looking like a blob.

The lighting device may include features to make it look like more thanjust a blob, and features to provide visual interest. Some of the waysto accomplish this may include:

-   -   Overlapping petals create patterns of dark and light on the lamp        surface.    -   Interior lights may shine through obstructions to project        stripes or patterns on the surface of the lamp.    -   Variations in thickness of the shade can create hot spots and        dim spots on the lamp surface.    -   Gaps in the lamp shade can create hard shades on nearby walls        and ceilings for a more immersive effect.    -   Reflective metal surfaces within the lamp can make hot spots and        shadows on the shade.    -   Texture on the surface of the lamp shade can be accented by        shining the light source across the surface at a nearly        tangential angle.    -   Add motion to lights using rotating disc or cylinders with semi        opaque, reflective or polarizing materials for added effects.        Use counterrotation at different speeds to further randomize the        effect.    -   The lighting device may include physical movement in addition to        simulated movement for more effects. This may be accomplished        with internal drive motors, servos or other motive devices. For        example:    -   An interior light source within the lighting device may rotate        slowly using a motor drive source. An internal disc or cylinder        may move an obstruction between the light source and the shade.        The obstruction may be reflective, opaque, polarizing or        semi-transparent. Multiple motors may rotate in opposite        directions to further randomize the effects on the shade or on        the environment.

The described embodiments are to be considered in all respects only asillustrative and not restrictive. The scope of the invention is,therefore, indicated by the appended claims rather than by the foregoingdescription. All changes which come within the meaning and range ofequivalency of the claims are to be embraced within their scope.

All patents and published patent applications referred to herein areincorporated herein by reference. The invention has been described withreference to various specific and preferred embodiments and techniques.Nevertheless, it is understood that many variations and modificationsmay be made while remaining within the spirit and scope of theinvention.

What is claimed is:
 1. A lighting device comprising: two or more lightsources; a controller, wherein the controller adjusts a light output ofthe light sources; a processor; non-transitory memory for data storage;stored settings in the non-transitory memory; at least one input device;a feedback control system; wherein the feedback control system: receivesa reference input representing an optimum circadian rhythm profile;wherein the optimum circadian rhythm profile is stored in the memory;receives input data from the input device; wherein the controller:modifies the reference input based on the input data; and wherein thecontroller controls the light output according to the stored settingsand the modified reference input to improve the circadian rhythm of auser.
 2. The invention of claim 1, wherein the input devices compriseone or more of a touch screen, a button, a dial, a motion sensor, amicrophone, a proximity sensor, a pressure sensor, a motion sensor, auser interface device, a mechanical sensor, Vision and Imaging Sensors,a camera, a temperature sensor, a radiation sensor, a position sensor, aphotoelectric sensor, a particle sensor, a humidity sensor, a gas orchemical sensor, a force sensor, a flow sensor, an electrical sensor, acontact sensor, a mechanical device, and an electrical sensor.
 3. Theinvention of claim 2, wherein the user interface device is at least oneof: a smart phone, a computer, an input device integrated to thelighting device, and a mobile device.
 4. The invention of claim 1,further comprising: a base structure supporting two or more planersurfaces; wherein the light sources shine light onto the one or moreplaner surfaces.
 5. The invention of claim 4, wherein at least one ofthe two or more planar surfaces are translucent allowing at least someof the light from the light sources to shine through the planersurfaces.
 6. The invention of claim 4, wherein the two or more planarsurfaces each have a shape representing a natural plant-like appearance.7. The invention of claim 1, further comprising a network device; andone or more wireless transmitter and receivers with at least oneantenna; and wherein the network device connects to an additional one ormore likely equipped lighting device.
 8. The invention of claim 7,wherein the network device is connected to at least one of: a local areanetwork, a wide area network and a cloud-based network.
 9. The inventionof claim 7, wherein the processor sends a control signal to thecontroller based on at least one of: one or more user inputs, a signalfrom the network device, and the stored settings.
 10. The invention ofclaim 7, wherein movement is simulated by sequencing the light output oftwo or more lighting devices.
 11. The invention of claim 1, wherein thelight source simulates movement by changing at least one of: the color,brightness and frequency of the light output.
 12. The invention of claim1, wherein the light source simulates movement by changing at least oneof: the color, brightness and frequency of the light output.
 13. Theinvention of claim 1, wherein the light sources simulate movement byseparating the light output into two or more channels; wherein eachchannel changes at least one of the brightness, color and frequency ofthe light output; wherein the harmonics generated between the channelscreate a movement effect.
 14. The invention of claim 1, wherein movementis simulated by sequencing the light output of the two or more lightsources in a lighting device.
 15. The invention of claim 1, wherein thecircadian rhythm of a user is stored in the stored settings as aspecific profile for that user.
 16. The invention of claim 15, wherein amodel is built representing the history of a user's profile over a timeperiod; wherein the model is modified based on changes to the user'sprofile over the time period; wherein the model is stored in the storedsettings.
 17. The invention of claim 16, wherein the model predictslight output profiles that will gradually adjust the user's circadianrhythms to the optimum range after a disruption event that has changedthe user's circadian rhythm to a less than optimum range.